Cita APA (7a ed.)

O'Brien, J. A. (2010). Introduction to information systems (12th ed.). Irwin/McGraw-Hill.

Cita Chicago Style (17a ed.)

O'Brien, James A. Introduction to Information Systems. 12th ed. Boston: Irwin/McGraw-Hill, 2010.

Cita MLA (9a ed.)

O'Brien, James A. Introduction to Information Systems. 12th ed. Irwin/McGraw-Hill, 2010.